CODEWITHSUNDEEP
iphoneobjective-ciosuiviewcontrolleruitabbarcontroller
Wesley
Wesley

Reputation: 2200

Putting a ViewController on top of a TabBarController

Basically I want to make a login screen in my iPhone app before I show my TabBarController. I tried the following approach, adding first to the window subview my TabBarController and on top my LoginViewController. What am I doing wrong or should I do it completely different?

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{    
    // Override point for customization after application launch.
    [self.window makeKeyAndVisible];

    NSMutableArray *tabItems = [[NSMutableArray alloc] initWithCapacity:2];

    DefaultViewController *dvc = [[DefaultViewController alloc] init];
    UINavigationController *dvc_nc = [[UINavigationController alloc] initWithRootViewController:dvc];
    dvc_nc.tabBarItem.title = @"Home";
    //dvc_nc.tabBarItem.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Default" ofType:@"png"]];
    [tabItems addObject:dvc_nc];
    [dvc release];
    [dvc_nc release];

    OptionsViewController *ovc = [[OptionsViewController alloc] initWithStyle:UITableViewStyleGrouped];
    UINavigationController *ovc_nc = [[UINavigationController alloc] initWithRootViewController:ovc];
    ovc_nc.tabBarItem.title = @"Option";
    //ovc_nc.tabBarItem.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Option" ofType:@"png"]];

    [tabItems addObject:ovc_nc];
    [ovc release];
    [ovc_nc release];

    UITabBarController *tbc = [[UITabBarController alloc] init];
    tbc.viewControllers = tabItems;
    self.tabController = tbc;
    [tabItems release];
    [tbc release];

    [self.window addSubview:self.tabController.view];

    LoginViewController *lvc = [[OptionsViewController alloc] init];
    UINavigationController *lvc_nc = [[UINavigationController alloc] initWithRootViewController:lvc];
    [self.window addSubview:lvc_nc.view];
    [lvc release];
    [lvc_nc release];

    return YES;
}

Upvotes: 0

Views: 584

Answers (2)

rckoenes
rckoenes

Reputation: 69469

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{    
    // Override point for customization after application launch.
    [self.window makeKeyAndVisible];

    NSMutableArray *tabItems = [[NSMutableArray alloc] initWithCapacity:2];

    DefaultViewController *dvc = [[DefaultViewController alloc] init];
    UINavigationController *dvc_nc = [[UINavigationController alloc] initWithRootViewController:dvc];
    dvc_nc.tabBarItem.title = @"Home";
    //dvc_nc.tabBarItem.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Default" ofType:@"png"]];
    [tabItems addObject:dvc_nc];
    [dvc release];
    [dvc_nc release];

    OptionsViewController *ovc = [[OptionsViewController alloc] initWithStyle:UITableViewStyleGrouped];
    UINavigationController *ovc_nc = [[UINavigationController alloc] initWithRootViewController:ovc];
    ovc_nc.tabBarItem.title = @"Option";
    //ovc_nc.tabBarItem.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"Option" ofType:@"png"]];

    [tabItems addObject:ovc_nc];
    [ovc release];
    [ovc_nc release];

    UITabBarController *tbc = [[UITabBarController alloc] init];
    tbc.viewControllers = tabItems;
    self.tabController = tbc;
    [tabItems release];
    [tbc release];

    [self.window addSubview:self.tabController.view];

    LoginViewController *lvc = [[OptionsViewController alloc] init];
    UINavigationController *lvc_nc = [[UINavigationController alloc] initWithRootViewController:lvc];
[self.tabController presentModalViewController:lvc_nc animated:no];
    [lvc release];
    [lvc_nc release];

    return YES;
}

Upvotes: 3

Björn Kaiser
Björn Kaiser

Reputation: 9912

I would use two different views. One will handle the login proccess and one is your "Logged in view" that provides the features of your app. When your app starts up, you add the login view, check username/password and when the login went fine you switch to your second view.

Upvotes: 0

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